The agriculture sector appears to have more research than is actually utilized in a practical way. Most of the research and innovation fall in the domain of academia and consultancies and, by their very nature, do not address the main problem from the individual farm enterprise perspective. They tend to follow the sources of project funding channeled through agencies, departments, and ministries and, therefore, produced in favor of such organizations. The argument presented in this book for success in productivity and food security requires action research and innovation at the individual farm enterprise level. It is here proposed that action research is integral to innovation, and the major source of innovation ought to be around practical systems and activities on farms to make them successful. The theoretical transitional funnel model for farm sustainability offered in this book presents opportunities for testing, scaling-up, and replication of the diversified-integrated farm concept.